EP 0484277 B1 19951018 - Automatic machine for preparing coffee infusions and method for performing the same.
Title (en)
Automatic machine for preparing coffee infusions and method for performing the same.
Title (de)
Automat zum Bereiten von Kaffeegetränken und Verfahren zur Durchführung dieser Bereitung.
Title (fr)
Machine automatique pour la préparation d'infusions de café et procédé de mise en action.
Publication
Application
Priority
CH 341790 A 19901025
Abstract (en)
[origin: US5275089A] It comprises at least one unit formed by a piston and by a cylindrical chamber, as well as means for supplying with ground coffee and with hot water under pressure, and means for the automatic starting and stopping of the unit and its means of supply. The piston (2) is fixed and the chamber (11, 16) is movable, both arranged horizontally. The chamber is formed by two juxtaposed cylindrical parts, the first part (11) accommodating in rest position the head (3) of the piston (2) fitted with an annular seal (6), has a diameter smaller than the diameter of the seal (6). The second part (16) of the cylindrical chamber has an inner diameter smaller than the outer diameter of the seal (6) permitting sealed sliding. The first part (11) houses a free sleeve (10) the inner diameter of which is equal to the inner diameter of the second part (16) so as to protect the seal when the head (3) passes in front of a lateral opening (13) for supplying ground coffee.
IPC 1-7
IPC 8 full level
A47J 31/36 (2006.01); A47J 31/40 (2006.01)
CPC (source: EP US)
A47J 31/3609 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR IT
DOCDB simple family (publication)
EP 0484277 A1 19920506; EP 0484277 B1 19951018; CH 684156 A5 19940729; DE 69113951 D1 19951123; DE 69113951 T2 19960627; US 5275089 A 19940104
DOCDB simple family (application)
EP 91810816 A 19911023; CH 341790 A 19901025; DE 69113951 T 19911023; US 78137891 A 19911023